JP2021172196A - Seal structure of motor vehicle - Google Patents

Abstract

To provide a seal structure of a motor vehicle which is excellent in a seal function and has a simple structure.SOLUTION: In a seal structure, seal parts 32, 42 included in door side weather strips 30, 40, attached along outer peripheral edge parts of doors 3, 4 of a motor vehicle and formed by extrusion molding, are placed in elastic contact with a body 50 to fill gaps between the doors 3, 4 and the body 50. A body side weather strip 60 formed by extrusion molding is attached to the body 50. The seal parts 32, 42 of the door side weather strips 30, 40 are placed in elastic contact with body seal parts 63, 64 included in the body side weather strip 60 and having higher rigidity than those of the seal parts 32, 42.SELECTED DRAWING: Figure 2

Description

The present invention relates to an automobile sealing structure which is attached along the periphery of an automobile door and which is elastically contacted with a door opening edge when the door is closed to seal a gap between the door and the body.

A general sedan vehicle (not shown), or a vehicle having a double door structure consisting of a swing-type front door 1 having a hinge located in the front and a swing-type rear door 2 having a hinge located in the rear, as shown in FIG. , As shown in FIG. 6, in a vehicle having a structure consisting of a swing-type front door 3 in which a hinge is located in the front and a sliding door 4 that moves in the front-rear direction of the vehicle, the center pillars 80 and 90 are used to improve the ease of getting on and off the occupants. Is desired to be slimmed down.

However, as shown in FIG. 7, a seal structure in which the seal portions 83, 84 of the door-side weather strips 81, 82 provided on the front door 3 and the slide door 4, respectively, are brought into contact with the seal surfaces 80b, 80c of the center pillar 80. (For example, in the case of FIG. 4 of Patent Document 1), since the positions of the weather strips 81 and 82 on the door side cannot be moved due to various restrictions, the sealing surfaces 80b and 80c cannot be moved either, and the sealing surfaces 80b cannot be moved. If the width 80L of the center pillar 80 in the vehicle front-rear direction is reduced while maintaining the position of 80c, the outer corner portion of the center pillar 80 becomes sharp and the panel formability is significantly deteriorated. In this case, it was difficult to reduce the width 80L of the center pillar 80 in the vehicle front-rear direction.

Alternatively, as shown in FIG. 8, the rear end of the front door 1 and the front end of the rear door 2 are arranged close to each other, and the seal member 91 provided on the rear door 2 is elastically contacted with the front door 1 to seal the seal member 91. A seal structure in which the provided lip portion 92 is also elastically contacted with the center pillar 90 is disclosed (see, for example, FIG. 8 of Patent Document 2).
According to this, by narrowing the width of the center pillar 90 in the vehicle front-rear direction, the opening width can be widened to improve the ease of getting on and off.

Japanese Unexamined Patent Publication No. 2005-297934 JP-A-2002-103970

However, in the seal structure shown in FIG. 8, there is a restriction that the rear door 2 is closed first and then the front door 1 is closed, the structures of the front door 1 and the rear door 2 are complicated, and the center pillar 90 is squeezed. As a result, there is a problem that the seal is insufficient because the lip portion 92 extending from the seal member 91 attached to the rear door 2 only comes into contact with each other.

Therefore, an object of the present invention is to provide a seal structure for an automobile having an excellent sealing function and a simple structure.
Another object of the present invention is to provide a seal structure for an automobile, which has an excellent sealing function and can reduce the size of the center pillar with a simple configuration without being bound by the order of opening and closing the door.

To achieve the above object, the present invention presents in extrusion-molded door-side weather strips (10, 20, 30) mounted along the outer periphery of an automobile door (1, 2, 3-4). , 40) has a seal structure (12, 22, 32, 42) that is brought into contact with the body (50) to close the space between the door (1 to 2, 3 to 4) and the body (50).
A body-side weather strip (60) formed by extrusion is attached to the body (50), and the body seal portion (63, 64) included in the body-side weather strip (60) is a door-side weather strip (10, 20, The body seal portion (63, 64) has a higher rigidity than the seal portion (12, 22, 32, 42) of the 30, 40), and the door side weather strip (10, 20, 30, 40) is attached to the body seal portion (63, 64). It is characterized in that the sealing portions (12, 22, 32, 42) to be held are brought into contact with each other.

Further, in the present invention, the body side weather strip (60) is attached to the outside of the vehicle of the center pillar (50), and the body seal portion (63, 64) is provided as a first hollow portion (1st hollow portion) provided on the front side of the vehicle. The door is composed of a second hollow portion (64) provided on the rear side of the vehicle, and the first hollow portion (63) is provided on a swing-type front door (3) in which a hinge is located in front of the first hollow portion (63). The second hollow portion (64) is in contact with the seal portion (32) of the side weather strip (30), and the second hollow portion (64) is provided on the sliding rear door (4) that moves in the front-rear direction of the vehicle. It is characterized in that it comes into contact with the seal portion (42) of the 40).

Further, in the present invention, the body side weather strip (60) is attached to the vehicle outer side of the center pillar (50), and the body seal portion (63, 64) is provided in the first hollow portion (1st hollow portion) provided on the vehicle front side. The door is composed of a second hollow portion (64) provided on the rear side of the vehicle, and the first hollow portion (63) is provided on a swing-type front door (1) in which a hinge is located in front of the first hollow portion (63). The second hollow portion (64) is in contact with the seal portion (12) of the side weather strip (10), and the second hollow portion (64) is the door provided on the swing-type rear door (2A, 2) in which a hinge is located forward or backward. It is characterized in that it comes into contact with the seal portion (22) of the side weather strip (20).

Further, in the present invention, the width (60L) of the body-side weather strip (60) in the vehicle front-rear direction is larger than the width (50L) of the surface of the center pillar (50) located on the outermost side of the vehicle in the vehicle front-rear direction. It is characterized by being large.

Further, the present invention is characterized in that the seal portion (12, 22, 32, 42) of the door side weather strip (10, 20, 30, 40) is hollow.

The symbols in parentheses indicate the corresponding elements or corresponding items described in the drawings and the mode for carrying out the invention described later.

According to the seal structure of the automobile of the present invention, the seal portion of the weather strip on the door side attached to the door is not directly brought into contact with the body panel as shown in the conventional example, but the body side attached to the body. Since it is elastically contacted with the body seal portion of the weather strip, the degree of freedom in designing the sealing property is increased, and as a result, a structure having a more excellent sealing function can be provided.
When this is particularly applied to the center pillar, the width of the center pillar in the vehicle front-rear direction can be narrowed while maintaining the seal mating surface of the door-side weather strip and maintaining good moldability of the panel.
Moreover, since the body seal portion of the body side weather strip has higher rigidity than the seal portion of the door side weather strip, a stable sealing function can be obtained in closing the space between the door and the body.
Further, since both the door side weather strip and the body side weather strip are extruded products, they can be easily used in parts other than the corners of the door and are easy to manufacture.

Further, according to the present invention, since the body side weather strip is attached to the vehicle outside of the center pillar, the vehicle outside of the center pillar is covered with the black color of the body side weather strip regardless of the body color. If the center pillar is black, it becomes a so-called protective color, which makes it easier to blend in with the darkness of the vehicle interior space in the background, and when both the front and rear doors are opened, it looks as if it is center pillarless, so it looks good on the outside. good.
Further, the first hollow portion of the body-side weather strip comes into contact with the seal portion of the door-side weather strip provided on the swing-type front door in which the hinge is located forward, and the second hollow portion of the body-side weather strip is formed. Since it comes into contact with the seal portion of the door-side weather strip provided on the sliding rear door that moves in the front-rear direction of the vehicle, the width of the center pillar in the front-rear direction of the vehicle can be narrowed in a so-called sliding door vehicle.
As a result, the opening width when the occupant gets on and off can be widened on both the front door side and the rear door side.

Further, according to the present invention, the first hollow portion of the body-side weather strip comes into contact with the seal portion of the door-side weather strip provided on the swing-type front door in which the hinge is located forward, and the first hollow portion of the body-side weather strip is in contact with the seal portion of the body-side weather strip. 2 Since the hollow portion is in contact with the seal portion of the door-side weather strip provided on the swing-type rear door in which the hinge is located at the rear, the width of the center pillar in the vehicle front-rear direction is narrowed in a so-called double door vehicle. be able to.
Further, since the second hollow portion of the body-side weather strip is in contact with the seal portion of the door-side weather strip provided on the swing-type rear door in which the hinge is located in the front, the center is also used in a general sedan vehicle. The width of the pillar in the front-rear direction of the vehicle can be reduced.

Further, according to the present invention, the width of the body-side weather strip in the vehicle front-rear direction is larger than the width of the outermost surface of the center pillar in the vehicle front-rear direction, so that the body color of the center pillar is difficult to see. Become.

Further, according to the present invention, since the sealing portion of the door side weather strip is hollow, it is easy to design the sealing property well while lowering the rigidity than the body sealing portion of the body side weather strip.

In the automobile sealing structure between the door and the body as in the present invention, the seal portion of the extruded door-side weather strip is brought into contact with the body seal portion of the similarly extruded body-side weather strip. It is a very characteristic structure.

FIG. 6 is an enlarged cross-sectional view taken along the line BB of FIG. 6 showing a state when a door is opened in a seal structure of an automobile according to a first embodiment of the present invention. FIG. 6 is an enlarged cross-sectional view taken along the line BB of FIG. 6 showing a state when the door is closed in the seal structure of the automobile according to the first embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 5 showing a state when a door is opened in a seal structure of an automobile according to a second embodiment of the present invention. It is an enlarged cross-sectional view which shows the state when the door is opened in the seal structure of the automobile which concerns on 3rd Embodiment of this invention. It is an external perspective view of an automobile. It is an external side view of another automobile. FIG. 6 is an enlarged cross-sectional view taken along the line BB of FIG. 6 showing a state when the door is closed in the seal structure of the automobile according to the conventional example. FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 5 showing a state when the door is closed in another automobile seal structure according to a conventional example.

(First Embodiment)
The seal structure of the automobile according to the first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 6. The same reference numerals are given to the same parts as in the conventional example.
As shown in FIG. 6, the seal structure of this automobile is a high roof having a swing-type front door 3 in which a hinge (not shown) is located in front and a sliding rear door (sliding door) 4 that moves in the front-rear direction of the vehicle. In the car, an example is shown in which the doors 3 and 4 and the body here, the center pillar 50 are closed to seal the inside and outside of the car. FIG. 2 shows a state in which the doors 3 and 4 are closed, and FIG. 1 shows a state in which the doors 3 and 4 are open (the doors 3 and 4 and the door side weather strips 30 and 40 are designated as virtual lines). ..

A door-side weather strip 30 is attached to the front door 3 along the outer peripheral edge thereof.
The door-side weather strip 30 is integrally molded with a mounting base 31 mounted along the outer peripheral edge of the door and inside the vehicle of the mounting base 31, and is a hollow seal that comes into contact with the center pillar 50 side when the front door 3 is closed. A lip portion 33 that is integrally molded on the outer side of the vehicle of the mounting base portion 31 and that comes into contact with the inner side surface of the front door 3 is provided.
The mounting base 31 is mounted on the first vertical plane 30X formed on the front door 3 and extending from the inside of the vehicle to the outside of the vehicle.
The door-side weather strip 30 is extruded and is rotated so as to surround the front door 3 and is molded and connected at a corner portion.
When the front door 3 is closed, the rear portion to which the door-side weather strip 30 of the front door 3 is attached is closed along the approach locus indicated by reference numeral 3K. The approach locus 3K is in the inside / outside direction of the vehicle and is substantially perpendicular to the front-rear direction of the vehicle.

A door-side weather strip 40 extending vertically along the outer peripheral edge of the front end of the sliding door 4 is attached.
The door-side weather strip 40 is integrally molded with a mounting base 41 mounted along the outer peripheral edge of the door and inside the vehicle of the mounting base 41, and is a hollow seal that comes into contact with the center pillar 50 side when the slide door 4 is closed. A lip portion 43 that is integrally molded on the outer side of the vehicle of the mounting base 41 and that comes into contact with the inner side surface of the sliding door 4 is provided with the portion 42.
The mounting base 41 is mounted on a second vertical plane 40X formed on the sliding door 4 and extending from the inside of the vehicle to the outside of the vehicle.
The door side weather strip 40 is extruded, and the upper end and the lower end are molded.
When the slide door 4 is closed, the front portion of the slide door 4 to which the door-side weather strip 40 is attached is closed along the approach locus indicated by reference numeral 4K. The approach locus 4K is in the inside / outside direction of the vehicle and is substantially perpendicular to the front-rear direction of the vehicle.

Further, a body-side weather strip 60 is attached to the outside of the center pillar 50 by double-sided tape (not shown) or clips (not shown) at regular intervals so as to cover the outside of the car.
The body-side weather strip 60 includes a mounting base 61 mounted on the outside of the center pillar 50, a first hollow portion 63 forming a body seal portion provided on the front side of the mounting base 61, and a mounting base 61. It is provided with a second hollow portion 64 provided on the rear side of the vehicle, which also constitutes a body seal portion.
The width 60L of the body-side weather strip 60 in the vehicle front-rear direction is larger than the vehicle front-rear width 50L of the surface of the center pillar 50 located on the outermost side of the vehicle.

The thickness 61S of the mounting base 61 in the vehicle interior / external direction is larger than the thickness 50S of the pillar panel constituting the center pillar 50. The thickness 61S of the mounting base 61 is preferably twice or more the thickness of the pillar panel 50S (in this embodiment, it is twice).
When a load is input to the body by connecting the body seal portions (first hollow portion 63, second hollow portion 64) to the mounting base 61, the body seal portions (63, 64) bend before and after the vehicle. Position change can be suppressed. Further, the thicker the thickness 61S of the mounting base 61, the less likely it is that the position change will occur.

As shown in FIG. 1, the first hollow portion 63 extends from the inside of the front end of the mounting base 61 to the front of the vehicle and then along the front corner 50a of the center pillar 50. The first wall 63a that curves inward of the vehicle, the second wall 63b that extends from the end of the first wall 63a to the front side of the vehicle and to the outside of the vehicle, and the front end of the mounting base 61 from the outside of the vehicle to the front side of the vehicle. It is composed of a third wall 63c extending to the outside of the vehicle, and a fourth wall 63d connecting the end of the second wall 63b and the end of the third wall 63c.
The thicknesses 63aS and 63cS of the first wall 63a and the third wall 63c are the same, but the thickness 63bS of the second wall 63b is twice the thickness 63aS and 63cS of the first wall 63a and the third wall 63c. ..
Then, the thickness of the fourth wall 63d is gradually changed from the same thickness as the thickness 63bS of the second wall 63b to be the same as the thickness 63cS of the third wall 63c.

Further, as shown in FIG. 1, the second hollow portion 64 extends from the inside of the rear end of the mounting base 61 to the rear of the vehicle in its cross-sectional shape, and then extends to the rear of the vehicle of the center pillar 50. A first wall 64a that curves inward along the corner portion 50b, a second wall 64b that extends from the end of the first wall 64a to the rear side of the vehicle and to the outside of the vehicle, and the rear end portion of the mounting base 61 on the vehicle rear side. It is composed of a third wall 64c extending from the outside of the vehicle to the rear side of the vehicle and extending to the outside of the vehicle, and a fourth wall 64d connecting the end of the second wall 64b and the end of the third wall 64c.
The thicknesses 64aS and 64cS of the first wall 64a and the third wall 64c are the same, but the thickness 64bS of the second wall 64b is twice the thickness 64aS and 64cS of the first wall 64a and the third wall 64c. .. The thickness of the fourth wall 64d is changed gradually from the same thickness as the thickness 64bS of the second wall 64b to be the same as the thickness 64cS of the third wall 64c.

That is, the first hollow portion 63 and the second hollow portion 64 of the body side weather strip 60 are formed to have higher rigidity than the seal portions 32 and 42 of the door side weather strips 30 and 40.
Here, the materials of the door side weather strip and the body side weather strip are the same, but it is preferable that the material of the body side weather strip is harder than the material of the door side weather strip.

The second wall 64b of the second hollow portion 64 has a slightly longer length in cross-sectional shape than the second wall 63b of the first hollow portion 63, and the amount of the second wall 63b protruding toward the front of the vehicle is larger than that of the second wall 63b. The amount of the second wall 64b protruding toward the rear side of the vehicle is slightly larger.

The body-side weather strip 60 is extruded, and the mounting base 61, the first hollow portion 63, and the second hollow portion 64 are made of the same material.
The first hollow portion 63 and the second hollow portion 64 may be formed of different materials with respect to the mounting base portion 61, but even in that case, the hardness of the materials of the first hollow portion 63 and the second hollow portion 64 is high. , It is preferable that the weather strips 30 and 40 on the door side are made of a material having a hardness higher than that of the sealing portions 32 and 42.

When the front door 3 is closed, as shown in FIG. 2, the seal portion 32 of the door-side weather strip 30 comes into contact with the fourth wall 63d forming the first hollow portion 63 of the body-side weather strip 60 from the outside of the vehicle. Has been made.
Further, when the rear door (sliding door) 4 is closed, as shown in FIG. 2, the seal portion 42 of the door side weather strip 40 constitutes the second hollow portion 64 of the body side weather strip 60, and the fourth wall 64d It is designed to come into contact with the car from the outside.
The surfaces of the fourth wall 63d of the first hollow portion 63 and the fourth wall 64d of the second hollow portion 64 to which the seal portions 32 and 42 come into contact with each other are treated to prevent wear.
Further, here, as the surface color, a color having a lightness of N3 or less of the Munsell color system is used.

At this time, the loads received by the first hollow portion 63 and the second hollow portion 64 from the seal portions 32 and 42 are the thick second wall 63b and the second wall 64b via the fourth wall 63d and the fourth wall 64d. The second wall 63b and the second wall 64b are inclined from the inside of the vehicle to the outside of the vehicle to the side surface of the center pillar 50 (the second wall 63b is the front surface of the center pillar 50, and the second wall 64b is the center pillar 50. Since it is in contact with the rear side surface), the load is received in a stable state and an excellent sealing function can be obtained.
Here, since the third wall 64c and the fourth wall 64d have a protruding shape that protrudes from the mounting base 61 to the outside in the vehicle width direction while establishing the door tightening, the fourth wall 64d contributes to the improvement of the sealing performance. do.
Further, a part of the third wall 64c or the fourth wall 64d may be changed to be thin or thick. The same can be said for the body seal portion 63. Further, a part of the body seal portions (63, 64) may be projected from the mounting base portion 61 to the outside of the vehicle, and the first hollow portion 63 and the second hollow portion 64 may be solid.

According to such a seal structure, the seal portions 32, 42 of the door side weather strips 30 and 40 are not directly brought into contact with the body panel, but the first body side weather strip 60 attached to the center pillar 50. Since the hollow portion 63 and the second hollow portion 64 are elastically contacted with each other, the degree of freedom in the design of the sealing property is increased, and as a result, a structure having a more excellent sealing function can be provided.
In the case where the seal structure is particularly applied to the center pillar 50 as in the example of the present embodiment, the center pillar 50 has a center pillar 50 while maintaining good moldability of the panel while securing the seal mating surfaces of the door side weather strips 30 and 40. The maximum width of 70 L in the front-rear direction of the vehicle can be reduced.

When the width 100L in the vehicle front-rear direction from the bending portion R3 of the front door 3 to the bending portion R4 of the sliding door 4 is wider than the width 50L of the outermost surface of the center pillar 50, the center pillar 50 is moved forward and backward. Although it can be thinned in the direction, the sealing property can be improved by arranging the present embodiment in a predetermined gap between the door (3, 4) and the center pillar 50.
Further, the outermost surface of the center pillar 50 should be located inside the vehicle as much as possible from the line connecting the bent portion R3 of the front door 3 and the bent portion R4 of the slide door 4 (virtual line of 100 L). The center pillar 50 can be made thinner in the vehicle width direction, but the sealing property can be improved by the present embodiment.
In particular, the third wall 63c and the fourth wall 63d of the first hollow portion 63, and the third wall 64c and the fourth wall 64d of the second hollow portion 64 have a protruding shape so as to protrude outward in the vehicle width direction. By the amount of protrusion, the outermost surface of the center pillar 50 can be positioned inside the vehicle.

Further, since the door-side weather strips 30 and 40 and the body-side weather strip 60 are both extruded products, they can be easily used in the parts other than the corners of the front door 3 and the rear door 4, and are easy to manufacture.
Further, since the body-side weather strip 60 is attached to the outside of the vehicle of the center pillar 50, the outside of the center pillar 50 is covered by the weather strip 60, which makes it look as if it is pillarless and has a good appearance.

(Second Embodiment)
Next, the seal structure of the automobile according to the second embodiment of the present invention will be described with reference to FIGS. 3 and 5.
As shown in FIG. 5, this automobile seal structure has a swing-type front door 1 in which a hinge (not shown) is located in the front and a swing-type rear door 2 in which a hinge (not shown) is located in the rear. In the door car, an example is shown in which the doors 1 and 2 and the center pillar 50 are closed to seal the inside and outside of the car. FIG. 3 shows a state in which the doors 1 and 2 are open (the doors 1 and 2 and the door side weather strips 10 and 20 are designated as virtual lines).

A door-side weather strip 10 is attached to the front door 1 along the outer peripheral edge thereof. Similar to the door-side weather strip 30, the door-side weather strip 10 has a mounting base 11 mounted on the first lead surface 10X formed on the front door 1 and extending from the inside of the vehicle to the outside of the vehicle, and the vehicle of the mounting base 11. A hollow seal portion 12 that is integrally molded on the inside and comes into contact with the center pillar 50 side when the front door 1 is closed, and a lip portion 13 that is integrally molded on the outside of the vehicle of the mounting base 11 and comes into contact with the inner side surface of the front door 1. It has.
A door-side weather strip 20 is attached to the rear door 2 along the outer peripheral edge thereof. Similar to the door-side weather strip 40, the door-side weather strip 20 has a mounting base 21 mounted on the second vertical surface 20X formed on the rear door 2 and extending from the inside of the vehicle to the outside of the vehicle, and the inside of the mounting base 21. It is provided with a hollow seal portion 22 which is integrally molded with the rear door 2 and comes into contact with the center pillar 50 side when the rear door 2 is closed, and a lip portion 23 which is integrally molded with the outside of the mounting base 21 and comes into contact with the inner side surface of the rear door 2. There is.

The door-side weather strips 10 and 20 are extruded and are rotated so as to surround the front door 1 and the rear door 2 and are molded and connected at the corners. When the front door 1 was closed, the door-side weather strip 10 of the front door 1 was attached. The rear portion was closed along the approach locus indicated by reference numeral 1K, and when the rear door 2 was closed, the door-side weather strip 20 of the rear door 2 was attached. The front part is closed along the approach locus indicated by reference numeral 2K.

A body-side weather strip 60 composed of a mounting base 61, a first hollow portion 63, and a second hollow portion 64 is attached to the outside of the center pillar 50 so as to cover the outside of the vehicle.
Similar to the first embodiment (FIG. 1), the first hollow portion 63 is composed of a first wall 63a, a second wall 63b, a third wall 63c, and a fourth wall 63d, and has the same shape.
The second hollow portion 64 is composed of a first wall 64a, a second wall 64b, a third wall 64c, and a fourth wall 64d, and the shape is centered on a line that evenly divides the mounting base 61 into two in the vehicle front-rear direction. , It is line-symmetrical with the first hollow portion 63 in FIG. Therefore, in the above-described first embodiment, the second wall 64b of the second hollow portion 64 has a slightly longer length in cross-sectional shape than the second wall 63b of the first hollow portion 63. In the second embodiment, the length of the second wall 64b of the second hollow portion 64 and the length of the second wall 63b of the first hollow portion 63 are the same.

The first hollow portion 63 and the second hollow portion 64 of the body side weather strip 60 are formed to have higher rigidity than the seal portions 12 and 22 of the door side weather strips 10 and 20, and the front When the door 1 is closed, the seal portion 12 of the door side weather strip 10 comes into contact with the fourth wall 63d forming the first hollow portion 63 of the body side weather strip 60 from the outside of the vehicle, and when the rear door 2 is closed, the seal portion 12 is in contact with the fourth wall 63d. The seal portion 22 of the door-side weather strip 20 is made to come into contact with the fourth wall 64d constituting the second hollow portion 64 of the body-side weather strip 60 from the outside of the vehicle.

According to such a seal structure, the seal portions 12 and 22 of the door side weather strips 10 and 20 are not directly brought into contact with the body panel, but the first body side weather strip 60 attached to the center pillar 50. Since it is elastically contacted with the hollow portion 63 and the second hollow portion 64, the center pillar 50 is in the front-rear direction of the vehicle while maintaining good moldability of the panel while securing the sealing mating surfaces of the weather strips 10 and 20 on the door side. The maximum width of 70L can be reduced.

When the width 100L in the vehicle front-rear direction from the bending portion R1 of the front door 1 to the bending portion R2 of the rear door 2 is wider than the width 50L of the outermost surface of the center pillar 50, the center pillar 50 is moved in the vehicle front-rear direction. However, by arranging the present embodiment in a predetermined gap between the doors (1, 2) and the center pillar 50, the sealing property can be improved.
Further, the outermost surface of the center pillar 50 is positioned inside the vehicle as much as possible from the line connecting the bent portion R1 of the front door 1 and the bent portion R2 of the rear door 2 (virtual line of 100 L). Although the center pillar 50 can be made thinner in the vehicle width direction, the sealing property can be improved by the present embodiment.
In particular, the third wall 63c and the fourth wall 63d of the first hollow portion 63, and the third wall 64c and the fourth wall 64d of the second hollow portion 64 have a protruding shape so as to protrude outward in the vehicle width direction. By the amount of protrusion, the outermost surface of the center pillar 50 can be positioned inside the vehicle.

As a result, it is possible to secure the maximum opening width when the occupant gets on and off the double door car.

(Third Embodiment)
Next, with reference to FIG. 4, the seal structure of the automobile according to the third embodiment of the present invention will be described.
The seal structure of this automobile is a general sedan having a swing type front door 1 in which a hinge (not shown) is located in front and a swing type rear door 2A (2) in which a hinge (not shown) is also located in front. In the car, an example is shown in which the doors 1 and 2A and the center pillar 50 are closed to seal the inside and outside of the car. FIG. 4 shows a state in which the doors 1 and 2A are open (the doors 1 and 2A and the door side weather strips 10 and 20 are designated as virtual lines).

A door-side weather strip 10 is attached to the front door 1 along the outer peripheral edge thereof, and a door-side weather strip 20 is attached to the rear door 2A along the outer peripheral edge thereof. Since the configurations of the door-side weather strips 10 and 20 are the same as those of the second embodiment described above, the description thereof will be omitted.
When the front door 1 was closed, the rear part of the front door 1 to which the door side weather strip 10 was attached was closed along the approach locus indicated by reference numeral 1K, and when the rear door 2A was closed, the door side weather strip 20 of the rear door 2A was attached. The front part is closed along the approach locus indicated by reference numeral 5K. The approach locus 5K is curved so as to approach the center pillar 50 from the outside of the vehicle to the inside of the vehicle. Immediately before the center pillar 50, the vehicle is heading from the rear to the front.

A body-side weather strip 60 composed of a mounting base 61, a first hollow portion 63, and a second hollow portion 64 is attached to the outside of the center pillar 50 so as to cover the outside of the vehicle.
Similar to the first embodiment (FIG. 1), the first hollow portion 63 is composed of a first wall 63a, a second wall 63b, a third wall 63c, and a fourth wall 63d, and has the same shape.
The second hollow portion 64 is composed of a first wall 64a, a second wall 64b, a third wall 64c, and a fourth wall 64d, but the approach locus of the rear door 2A is different from that of the first embodiment (FIG. 1). Therefore, it is different from the shape of the second hollow portion 64 of the first embodiment.

That is, as shown in FIG. 4, the second hollow portion 64 in the third embodiment extends from the inside of the rear end of the mounting base 61 to the rear of the vehicle in its cross-sectional shape, and then the center pillar 50. The first wall 64a that curves inward along the corner portion 50b on the rear side of the vehicle, the second wall 64b that extends from the end of the first wall 64a to the rear side of the vehicle and to the outside of the vehicle, and the vehicle of the mounting base 61. It consists of a third wall 64c extending from the outside of the vehicle at the rear end to the rear of the vehicle and to the outside of the vehicle, and a fourth wall 64d connecting the end of the second wall 64b and the end of the third wall 64c. The wall 64d extends in the inside / outside direction of the vehicle (generally perpendicular to the front / rear direction of the vehicle). The rear side of the vehicle on the fourth wall 64d is flat.
The thicknesses 64aS and 64cS of the first wall 64a and the third wall 64c are the same, but the thickness 64dS of the fourth wall 64d is thicker than the thicknesses 64aS and 64cS of the first wall 64a and the third wall 64c. The thickness 64bS of the second wall 64b is even thicker than the thickness 64dS of the fourth wall 64d. The thickness 64bS of the second wall 64b is twice as thick as the thicknesses 64aS and 64cS of the first wall 64a and the third wall 64c.
The length of the second wall 64b in the cross-sectional shape is shorter than the length of the first wall 64a, the third wall 64c, and the fourth wall 64d, and the length of the first hollow portion 63 in the cross-sectional shape of the second wall 63b. Is half of.

That is, the first hollow portion 63 and the second hollow portion 64 of the body side weather strip 60 are formed to have higher rigidity than the seal portions 12 and 22 of the door side weather strips 10 and 20, and the front When the door 1 is closed, the seal portion 12 of the door side weather strip 10 comes into contact with the fourth wall 63d forming the first hollow portion 63 of the body side weather strip 60 from the outside of the vehicle, and when the rear door 2 is closed, the seal portion 12 is in contact with the fourth wall 63d. The seal portion 22 of the door-side weather strip 20 is made to come into contact with the fourth wall 64d constituting the second hollow portion 64 of the body-side weather strip 60 from the rear side of the vehicle.

According to such a seal structure, the seal portions 12 and 22 of the door side weather strips 10 and 20 are not directly brought into contact with the body panel, but the first body side weather strip 60 attached to the center pillar 50. Since it is elastically contacted with the hollow portion 63 and the second hollow portion 64, the center pillar 50 is in the front-rear direction of the vehicle while maintaining good moldability of the panel while securing the sealing mating surfaces of the weather strips 10 and 20 on the door side. The maximum width of 70L can be reduced.

When the width 100L in the vehicle front-rear direction from the bending portion R1 of the front door 1 to the bending portion R2 of the rear door 2 is wider than the width 50L of the outermost surface of the center pillar 50, the center pillar 50 is moved in the vehicle front-rear direction. However, by arranging the present embodiment in a predetermined gap between the doors (1, 2) and the center pillar 50, the sealing property can be improved.
Further, the outermost surface of the center pillar 50 is positioned inside the vehicle as much as possible from the line connecting the bent portion R1 of the front door 1 and the bent portion R2 of the rear door 2 (virtual line of 100 L). Although the center pillar 50 can be made thinner in the vehicle width direction, the sealing property can be improved by the present embodiment.
In particular, the third wall 63c and the fourth wall 63d of the first hollow portion 63, and the third wall 64c and the fourth wall 64d of the second hollow portion 64 have a protruding shape so as to protrude outward in the vehicle width direction. By the amount of protrusion, the outermost surface of the center pillar 50 can be positioned inside the vehicle.

As a result, even in a general sedan vehicle, the opening width at the time of getting on and off the occupant can be widened.

In the first to third embodiments of the present invention, an example applied to a door structure on the side side of an automobile such as a swing type door or a sliding type door is shown, but it is applicable if it is a structure that seals between the door and the body. Since it is possible, it can be applied to, for example, a back door.

Further, the structures of the first hollow portion 63 and the second hollow portion 64 of the body-side weather strip 60 have been specifically shown, but the first hollow portion 63 and the second hollow portion 64 are not limited thereto. Any material may be used as long as it has a higher rigidity than the seal portion of the weather strip on the door side and has stability when it comes into contact with the seal portion.
The seal portion of the weather strip on the door side is not limited to a hollow shape but may be a lip shape.

1 Front door 2, 2A Rear door 3 Front door 4 Sliding door 1K, 2K, 3K, 4K, 5K Entry trajectory 10, 20, 30, 40 Door side weather strip 11,21,31,41 Mounting base 12, 22, 32, 42 Seal part 13, 23, 33, 43 Lip part 10X, 30X 1st vertical face 20X, 40X 2nd vertical face 50 Center pillar (body)
50a, 50b Corner 50L Width of the outermost surface of the center pillar in the vehicle front-rear direction 50S Center pillar thickness 60 Body side weather strip 60L Body side weather strip width 61 Mounting base 61S Body side weather strip thickness 63 Body seal part (first hollow part)
63a 1st wall 63b 2nd wall 63c 3rd wall 63d 4th wall 63aS, 63bS, 63cS Thickness 64 Body seal part (2nd hollow part)
64a 1st wall 64b 2nd wall 64c 3rd wall 64d 4th wall 64aS, 64bS, 64cS, 64dS Thickness 70L Maximum width of center pillar in the vehicle front-rear direction 80 Center pillar 80b, 80c Seal surface 80L Center pillar width 81, 82 Door side weather strip 83,84 Seal part 90 Center pillar 91 Seal member 92 Lip part 100L Width of door bending part in the vehicle front-rear direction R1, R2, R3, R4 Door bending part

Claims (5)

It is a seal structure that closes the space between the door and the body by elastically contacting the seal portion of the extruded door-side weather strip attached along the outer peripheral edge of the door of the automobile to the body.
A body-side weather strip formed by extrusion is attached to the body, and the body seal portion of the body-side weather strip has higher rigidity than the seal portion of the door-side weather strip, and the door is attached to the body seal portion. An automobile seal structure characterized in that the seal portion of the side weather strip is elastically contacted. The body-side weather strip is attached to the outside of the vehicle of the center pillar, and the body seal portion is composed of a first hollow portion provided on the front side of the vehicle and a second hollow portion provided on the rear side of the vehicle. The hollow portion is in contact with the seal portion of the door-side weather strip provided on the swing-type front door in which the hinge is located in the front, and the second hollow portion is formed on the sliding rear door that moves in the front-rear direction of the vehicle. The automobile seal structure according to claim 1, wherein the seal portion of the door-side weather strip provided is in contact with the seal portion. The body-side weather strip is attached to the outside of the vehicle of the center pillar, and the body seal portion is composed of a first hollow portion provided on the front side of the vehicle and a second hollow portion provided on the rear side of the vehicle. The hollow portion is in contact with the seal portion of the door-side weather strip provided on the swing-type front door in which the hinge is located in the front, and the second hollow portion is in the swing-type in which the hinge is located in the front or the rear. The automobile seal structure according to claim 1, wherein the seal portion of the door-side weather strip provided on the rear door is elastically contacted. The automobile seal structure according to claim 2 or 3, wherein the width of the body-side weather strip in the vehicle front-rear direction is larger than the width of the outermost surface of the center pillar in the vehicle front-rear direction. .. The automobile sealing structure according to any one of claims 1 to 4, wherein the sealing portion of the door-side weather strip is hollow.

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